Planar sensor element having a solid electrolyte substrate
US5516410A · kind A · utility
119Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Dec 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4067
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is based on a planar sensor element for determining the oxygen content of gas mixtures, particularly in internal combustion engines such as those found in automobiles. The sensor element comprises a measuring cell and an integrated heat conductor embedded in electric insulation all of which rest on a solid electrolyte substrate. At least one hollow chamber separates one or several parts of the insulation from the solid electrolyte substrate in order to effect an improved decoupling of the sensor's heat conductor from its measuring cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.